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Identification of AXUD1, a novel human gene induced by AXIN1 and its reduced expression in human carcinomas of the lung, liver, colon and kidney.
- Source :
- Oncogene; 8/16/2001, Vol. 20 Issue 36, p5062, 5p
- Publication Year :
- 2001
-
Abstract
- Axin, an important regulator of β-catenin, is frequently mutated in human hepatocellular carcinomas (HCCs), and transduction of the wild-type Axin gene (AXIN1) induces apoptosis in HCC cells as well as in colon cancer cells. To investigate the detailed biological function of Axin, we searched on a cDNA microarray for genes whose expression was altered by transfer of wild-type AXIN1 into colon-cancer cell line LoVo. Among the genes showing altered expression, we focused on one, termed AXUD1 (AXIN1 up-regulated<superscript>1</superscript>), that revealed enhanced expression in response to exogeneously expressed AXIN1 but not to LacZ, a control gene. The AXUD1 gene consists of five exons and encodes a transcript with an open reading frame of 1767 bp. A 3.2-kb transcript of AXUD1 was expressed in all human tissues examined, most abundantly in lung, placenta, skeletal muscle, pancreas and leukocyte. By radiation-hybrid mapping we assigned its chromosomal location at 3p22, a region where frequent loss of heterozygosity has been reported in lung, renal, prostate, breast and cervical cancers. AXUD1 was frequently down-regulated in lung, kidney, liver and colon cancers compared with their corresponding normal tissues, suggesting that AXUD1 may have a tumor-suppressor function in those organs. Oncogene (2001) 20, 5062–5066. [ABSTRACT FROM AUTHOR]
- Subjects :
- LIVER cancer
APOPTOSIS
CANCER cells
CELL lines
GENES
Subjects
Details
- Language :
- English
- ISSN :
- 09509232
- Volume :
- 20
- Issue :
- 36
- Database :
- Complementary Index
- Journal :
- Oncogene
- Publication Type :
- Academic Journal
- Accession number :
- 8917314
- Full Text :
- https://doi.org/10.1038/sj.onc.1204603